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PROCESS OF GENERATING STEAM AND UTILIZING EXHAUST. No. 311,984. PatentedFeb. 10, 1885.

Wifineaai Inward-0T:

UNITED Snrarns AliENT rerun.

OHRISTIAN HEINZERLING, OF FRANKFORT-ON-THE-MAIN, GERMANY.

PROCESS OF GENERATBNG STEAM AND UTILlZlNG EXHAUST.

SPECIFICATION forming part of Letters .Patent No. 311,984, datedFebruary 10, 1885.

Applicaiioufiled April 16, 1884. (X0 model.) Patented in Germany March29, 1854; in England March 31, 1884, No, 5,699, and V in France March3!, 1884,33). 161,293.

To ctZZ whom, it may concern.-

Be it known that I, CHRISTIAN HEINZER- LING, of Frankforton-the-Main, inthe Ear pire of Germany, doctor of philosophy, have invented certain newand useful Improvements in the Process of Generating Steam and UtilizingExhaust, of which the following is a specification.

This invention relates to a novel method of generating live steam andutilizing exhaust; and it consists in delivering exhaust-s. cam into orupon quicklime or caustic strontia, closely surrounding or in contactwith the vessel c011- taining the water to be converted into steam.

The accompanying drawing illustrates one embodiment of my invention, thegenerator casing or chamber being broken away to show the interior.

I may state here that prior to my invention various plans have beendevised or proposed for generating heat without actual combustion, andamong other plans it has been proposed to permit water to flow uponquicklime or like substance placed beneath a retort or vessel containingcarbonicacid gas, ammonia, or other gaseous matters, in order to heatsuch gaseous matters and produce a sufficiently high tension or pressurethereof for the opera tion of motors. Such plan involves the use andcare of special water-tanks, and the low temperature of the water in ameasure neutralizes the heat of the moistened lime. An other proposedplan bears a stronger resemblance to mine, andconsists in dischargingexhaust-steam into or upon caustic soda or caustic potash, and therebyutilizing the exhaust and securing a considerable amount of heat.Caustic soda and caustic potash used in this manner do not, however,give as good results as quicklime or caustic strontia, and are vastlymore dangerous to use. Vith quicklime or strontia the steam passes fromits vaporous state to a solid by chemically combining therewith andforming a hydrate, whereas with the caustic soda and caustic potashsteam unites only suificiently to form a liquid, thus showing lessabsorption and a smaller genera tion of heat; therefore, whiledisclaiming both,

of the plans above set forth, I have discovered and embodied animprovement of great practicalvalue.

In carrying out my invention I take calcium oxide (quicklime) orstrontium oxide, either of which combines with water very readily,giving off a great heat and falling to a white powder, called calciumhydrate, (slaked lime.) or, as the case may be, strontium hydrate. Eachof these hydrates can be converted again into oxides by strong heat.Steam converts calcium and strontium oxides in the same way that waterdoes into hydrates. A layer of granular lime can therefore serve as ameans for absorbing steam completely. W'hen steam is absorbed by calciumoxide, (quicklime,) heat is evolved in two ways: first. the whole latentheat of steam, five hundred and thirty-seven calories; second, thecombining heat of calcium oxide with water, one hundred and forty-fourcalories. This heat produced by the absorption of steam and combinationof calcium oxide with water can be raised to about 250 or 300 Celsius.

The accompanying drawing illustrates the manner of carrying out myprocess as applied to steam-engines. The steam-engine A can be of anyordinary construction. orator chamber B, which is preferably tubulous,is first filled with water, and steam heated, say, to sixty pounds onthe square inch (four atmospheres) from any convenient boiler.Surrounding the steam-generator B, I place a filling, O, of quicklime(0.1 0) or caustic strontia, (Sr OQ preferably lime, as having thesmallest combining equivalent, and being capable of giving out thelargest amount of heat per pound weight of material, besides being thecheapest. \Vhen the steam-engine A is set in action, the exhaust-steamis let into the quicklime-chamber D. This unites with the quicklime,forming hydrate of lime, and gives out heat, as above described,penetrating through the walls of the steam-generator The steam-gen- B,and causing the generation of more steam for the engine. Thisaction,consequently, goes on until the water and steam in the generator13 become exhausted, or the quicklime becomes fully hydrated and itstemperature and that of the water falls too low to generate the steamrequisite to work .the engine. If, too, the The herein-described methodof generating quicklinie-chaniber be air-tight and an airsteam andutilizing exhaust, which consists I 5 pump be'used, the condensation ofthe steam in discharging exhaust-steam into or upon will form avacuumwhich will still further inquiekiime or-caustic strontia in intimatecon- 5 crease the power of the engine, as in ordinary tact with thesteam-generator.

condensing-engines. In testimony whereof I have signed my name Theactual form of mechanism I propose to to this specification in thepresence of two sub- 20 adopt for steam-engine purposes I intend toscribing witnesses. cover under another patent upon an applica- T T 10tion filed by me on the 3d day of April, 1884, GHRPSTIAL HE ZERLINSerial No. 126,564. Witnesses:

Having thus described my invention, what MORITZ WEINIG, I claim is a A.S. HOG-UE.

